.box{
    position: relative;
    width: 100px;
    height: 100px;
    border: 2px solid #ccc;
    border-radius: 50%;
    margin: 20px;
    overflow: hidden;
}
.box img{
    width: 100px;
    height: 100px;
}
.box .title{
    width: 100px;
    height: 100px;
    position:absolute;
    z-index: 99;
    top: 0;
    left: 0;
    line-height: 100px;
    text-align: center;
    font-size: 28px;
    color: yellow;
    background-color: rgba(255,0,0,.2);
}